A lightweight, high-performance measurement tool for Unity Editor that allows precise distance measurements, bounding box visualization, and reference object previews directly in Scene View.Core FeaturesDistance Measurement: Measure distances between any two points in your sceneBounding Box Display: View object dimensions with color-coded axes (X/Y/Z)Reference Object Preview: Toggle a reference cube to visualize scaleMultiple Unit Systems: Support for mm, cm, m, km, feet, and inchesReal-time Feedback: Live measurement updates as you move the mouseZero Performance Impact: Optimized for no allocations during measurementxRuler Pro ControlsShift + R - Activate measurement modeLeft Click - Set measurement points (first click = start, second = end, third = new measurement)Click Object - Display bounding box with X/Y/Z dimensionsScroll Wheel - Toggle reference cube previewEsc - Exit measurement modeTools > xRuler Pro Manager - Open settings (units, colors, sizes)Performance OptimizationZero Allocations: No GC allocations during measurement operationsCached Styles: GUI styles cached and reusedStruct-Based Data: Measurement data uses structs to avoid heap allocationsConditional Raycasting: Only raycasts when actively measuringEfficient Drawing: Uses Unity's Handles API for optimal renderingCompatibilityUnity Versions: 2020.3 LTS and newerRender Pipelines: Built-in, URP, HDRP (Editor-only, pipeline agnostic)Platforms: Works in Unity Editor on Windows, Mac, Linux
